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https://www.readbyqxmd.com/read/29471204/fabrication-of-a-solution-gated-transistor-based-on-valinomycin-modified-iron-oxide-nanoparticles-decorated-zinc-oxide-nanorods-for-potassium-detection
#1
Min-Sang Ahn, Rafiq Ahmad, Kiesar Sideeq Bhat, Jin-Young Yoo, Tahmineh Mahmoudi, Yoon-Bong Hahn
There are considerable interests to detect and monitor the abnormal level of minerals in water for avoiding/preventing any toxic effects after consumption. Herein, we report the fabrication of solution-gated field-effect-transistor (FET) based potassium sensor using iron oxide nanoparticles (Fe2 O3 NPs) modified directly grown zinc oxide nanorods (ZnO NRs). The Fe2 O3 NPs modification of ZnO NRs provided stability to nanorods surface and improved surface area for valinomycin immobilization. As-fabricated potassium sensor (valinomycin-Fe2 O3 NPs-ZnO NRs/SiO2 /Si) provided enhanced current response with increasing potassium concentration...
February 14, 2018: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29423365/exploring-the-feelings-of-iranian-women-of-reproductive-age-about-health-care-seeking-behavior-a-qualitative-study
#2
Mohammad Ali Morowatisharifabad, Tahereh Rahimi, Tahmineh Farajkhoda, Hossein Fallahzadeh, Siamak Mohebi
Background: Despite the important role of feelings in health care seeking behavior (HCSB), this subject has not yet been adequately investigated. HCSB-related feelings begin with the onset of disease symptoms and persist in different forms after treatment. The aim of current study was to explore the feelings that women of reproductive age experience when they seek health care. Methods: In this deductive, qualitative content analysis, participants were selected by purposeful sampling. Semi-structured, in-depth interviews with 17 women of reproductive age and 5 health care staffs in Qom, Iran were carried out until data saturation was achieved...
2018: Health Promotion Perspectives
https://www.readbyqxmd.com/read/29421707/design-and-synthesis-of-novel-coumarin-pyridinium-hybrids-in-vitro-cholinesterase-inhibitory-activity
#3
Fahimeh Vafadarnejad, Mohammad Mahdavi, Elahe Karimpour-Razkenari, Najmeh Edraki, Bilqees Sameem, Mahnaz Khanavi, Mina Saeedi, Tahmineh Akbarzadeh
A novel series of coumarin-pyridinium hybrids were synthesized and evaluated as inhibitors of acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) using Ellman's method. Among synthesized compounds, 1-(3-fluorobenzyl)-4-((2-oxo-2H-chromene-3-carboxamido)methyl)pyridinium bromide (7l) was found to be the most active compound toward AChE (IC50 = 10.14 µM), 1-(3-chlorobenzyl)-3-((2-oxo-2H-chromene-3-carboxamido)methyl)pyridinium bromide (7g) and 1-(2,3-dichlorobenzyl)-3-((2-oxo-2H-chromene-3-carboxamido)methyl)pyridinium chloride (7h) depicted the best BChE inhibitory activity (IC50s = 0...
January 27, 2018: Bioorganic Chemistry
https://www.readbyqxmd.com/read/29408145/fabrication-of-sensitive-non-enzymatic-nitrite-sensor-using-silver-reduced-graphene-oxide-nanocomposite
#4
Rafiq Ahmad, Tahmineh Mahmoudi, Min-Sang Ahn, Jin-Young Yoo, Yoon-Bong Hahn
There are increasing demands of more sensitive sensors for monitoring potential hazards in real water that may cause serious problems to human health. Herein, we report the development of a non-enzymatic nitrite sensor using nanocomposite of reduced graphene oxide decorated with silver nanoparticle (Ag-rGO). First, Ag-rGO nanocomposite was synthesized using a facile and cost-effective microwave-assisted approach. Then, as-synthesized Ag-rGO nanocomposite was used to modify glassy carbon electrode (GCE) and applied for the sensitive and selective detection of nitrite in the aqueous medium with increasing concentration of nitrite...
January 16, 2018: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29403619/national-survey-of-availability-of-physical-rehabilitation-services-in-iran-a-mixed-methods-study
#5
Marzieh Shirazikhah, Arash Mirabzadeh, Homeira Sajadi, Mohammad Taghi Joghataei, Akbar Biglarian, Tahmineh Mousavi, Farahnaz Mohammadi Shahboulaghi
Background: The prevalence of disability in Iran has increased due to ageing of the population and the presence of chronic diseases. However, little is known about the availability of rehabilitation services in Iran. Objective: To study the availability of physical rehabilitation services in Iran. Methods: This was a mixed method study. In the first phase, a qualitative design was conducted for designing an instrument with focus groups based on Service Availability and Readiness Assessment (SARA) instrument (developed by World Health Organization)...
November 2017: Electronic Physician
https://www.readbyqxmd.com/read/29373886/the-neuroprotective-effects-of-flaxseed-oil-supplementation-on-functional-motor-recovery-in-a-model-of-ischemic-brain-stroke-upregulation-of-bdnf-and-gdnf
#6
Abolqasem Bagheri, Sahand Talei, Negar Hassanzadeh, Tahmineh Mokhtari, Mohammad Akbari, Fatemeh Malek, Seyed Behnamedin Jameie, Yousef Sadeghi, Gholamreza Hassanzadeh
Cerebral ischemic stroke is a common leading cause of disability. Flaxseed is a richest plant-based source of antioxidants. In this study, the effects of flaxseed oil (FSO) pretreatment on functional motor recovery and gene expression and protein content of neurotrophic factors in motor cortex area in rat model of brain ischemia/reperfusion (I/R) were assessed. Transient middle cerebral artery occlusion (tMCAo) in rats was used as model brain I/R. Rats (6 in each group) were randomly divided into four groups of Control (Co+normal saline [NS]), Sham (Sh+NS), tMCAo+NS and tMCAo+FSO...
December 2017: Acta Medica Iranica
https://www.readbyqxmd.com/read/29344051/experiences-of-fathers-with-inpatient-premature-neonates-phenomenological-interpretative-analysis
#7
Tahmineh Dadkhahtehrani, Narges Eskandari, Zohre Khalajinia, Hoda Ahmari-Tehran
Background: Birth and hospitalization of premature neonates create enormous challenges for the family with serious impacts on parents' mental and emotional health. The present study was designed to explore the experiences of fathers with premature neonates hospitalized in a neonatal intensive care unit (NICU). Materials and Methods: In this interpretative phenomenological study, data were collected using in-depth interviews guided with a semi-structured questionnaire and analyzed by interpretative phenomenological analysis...
January 2018: Iranian Journal of Nursing and Midwifery Research
https://www.readbyqxmd.com/read/29167715/quality-of-the-calcium-enriched-mixture-apical-plug-in-simulated-apexification-model-effect-of-different-mixing-and-placement-methods
#8
Saeed Rahimi, Negin Ghasemi, Tahmineh Razi, Akbar Rezaiepour
Background: Presence of voids at root canal wall‒apical seal material interface gives rise to the entrapment of toxins and microorganisms, which might have a relationship with post treatment disease. The present study was carried out to evaluate the effect of different mixing (manual and ultrasonic) and placement (manual and manual in association with indirect ultrasonic) methods of Calcium-enriched Mixture (CEM) cement on the number and dimensions of voids in the apical plug in simulated apexification models...
October 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/29101761/the-correlation-of-gene-expression-of-inflammasome-indicators-and-impaired-fertility-in-rat-model-of-spinal-cord-injury-a-time-course-study
#9
Banafsheh Nikmehr, Mahshid Bazrafkan, Gholamreza Hassanzadeh, Abdolhossein Shahverdi, Mohammad Ali Sadighi Gilani, Sahar Kiani, Tahmineh Mokhtari, Farid Abolhassani
PURPOSE: Expression assessment of the inflammasome genes in the acute and the chronic phases of Spinal cord injury (SCI) on adult rat testis and examination of associations between inflammasome complex expression and sperm parameters. MATERIALS AND METHODS: In this study, 25 adult male rats were randomly divided into 5 groups. SCI surgery was performed at T10-T11 level of rats' spinal cord in four groups (SCI1, SCI3, SCI7, and SCI56). They were sacrificed after 1day, 3days, 7days and 56 days post SCI, respectively...
November 4, 2017: Urology Journal
https://www.readbyqxmd.com/read/29034738/chemodiversity-of-nepeta-menthoides-boiss-bohse-essential-oil-from-iran-and-antimicrobial-acetylcholinesterase-inhibitory-and-cytotoxic-properties-of-1-8-cineole-chemotype
#10
Niloofar Kahkeshani, Abbas Hadjiakhoondi, Latifeh Navidpour, Tahmineh Akbarzadeh, Malihe Safavi, Elahe Karimpour-Razkenari, Mahnaz Khanavi
The essential oil of Nepeta menthoides Boiss. & Bohse., from Iran, was analysed by GC/MS. Two types of multivariate analyses were done based on the chemical composition of the investigated sample in this study and 12 other samples reported in the literature to show the chemodiversity in essential oil composition. Antimicrobial, acetylcholinesterase inhibitory and cytotoxic activities of the essential oil and its major component were assessed. Twenty-one compounds were identified, representing 96.81% of the total oil and the major constituent was 1,8-cineole (70...
October 15, 2017: Natural Product Research
https://www.readbyqxmd.com/read/29034676/lipid-peroxidation-and-its-role-in-the-expression-of-nlrp1a-and-nlrp3-genes-in-testicular-tissue-of-male-rats-a-model-of-spinal-cord-injury
#11
Mahshid Bazrafkan, Banafsheh Nikmehr, Abdolhossein Shahverdi, Seyed Reza Hosseini, Fatemeh Hassani, Mahnaz Poorhassan, Tahmineh Mokhtari, Farid Abolhassani, Hamid Choobineh, Cordian Beyer, Gholamreza Hassanzadeh
BAckground: The majority of male patients with spinal cord injury (SCI) suffer from infertility. Nucleotide-binding oligomerization domain-like receptors NOD-like receptors (NLRs) are a kind of receptors that corporate in the inflammasome complex. Recent studies have introduced the inflammasome as the responsible agent for secreting cytokines in semen. Reactive oxygen species (ROS) is one of the elements that trigger inflammasome activation. Genital infections in SCI can lead to ROS generation...
October 16, 2017: Iranian Biomedical Journal
https://www.readbyqxmd.com/read/28942344/recent-advances-in-nanowires-based-field-effect-transistors-for-biological-sensor-applications
#12
REVIEW
Rafiq Ahmad, Tahmineh Mahmoudi, Min-Sang Ahn, Yoon-Bong Hahn
Nanowires (NWs)-based field-effect transistors (FETs) have attracted considerable interest to develop innovative biosensors using NWs of different materials (i.e. semiconductors, polymers, etc.). NWs-based FETs provide significant advantages over the other bulk or non-NWs nanomaterials-based FETs. As the building blocks for FET-based biosensors, one-dimensional NWs offer excellent surface-to-volume ratio and are more suitable and sensitive for sensing applications. During the past decade, FET-based biosensors are smartly designed and used due to their great specificity, sensitivity, and high selectivity...
September 18, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28904537/the-effect-of-new-model-prepared-on-obtaining-informed-consent-skill-in-midwifery-students-of-shahid-sadoughi-university-of-medical-sciences
#13
Tahmineh Farajkhoda, Mahshid Bokaie, Mahmoud Abbasi, Saeedeh NajafiHedeshi, Zahra Alavi, Mahin Rahimdel
BACKGROUND: Professional ethics culture should be taught to students appropriately. Studies have shown that midwifery students are not entirely familiar with the skill of obtaining informed consent. Using a new and applicable model to teach this skill to midwifery students is necessary. This study was conducted to determine the effect of a new standard model, PREPARED, on the skill of obtaining informed consent in midwifery students of Shahid Sadoughi University of Medical Sciences. MATERIALS AND METHODS: This interventional study was conducted on 37 5(th) semester midwifery students through a census method...
July 2017: Iranian Journal of Nursing and Midwifery Research
https://www.readbyqxmd.com/read/28871488/radio-protective-effects-of-melatonin-on-subventricular-zone-in-irradiated-rat-decrease-in-apoptosis-and-upregulation-of-nestin
#14
Shafigheh Naseri, Seyed Mohammad Hossein Noori Moghahi, Tahmineh Mokhtari, Mehrdad Roghani, Ali Reza Shirazi, Fatemeh Malek, Tayebeh Rastegar
Neural stem cells are self-renewing, multipotent cells that can be found in subventricular (SVZ) and subgranular (SGZ) zones of the brain. These zones are susceptible to irradiation-induced apoptosis and oxidative stress. Melatonin (MLT) is a natural protector of neural cells against toxicity. The aim of this study was to evaluate the effects of MLT as a radio-protective material effective in reducing tissue lesions in the SVZ of the brain and changing local apoptotic potential in rats. Twenty-five Gray irradiation was applied on adult rat brain for this study...
October 2017: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/28836276/the-expression-localization-and-function-of-%C3%AE-7-nicotinic-acetylcholine-receptor-in-rat-corpus-cavernosum
#15
Hedyeh Faghir-Ghanesefat, Nastaran Rahimi, Fatemeh Yarmohammadi, Tahmineh Mokhtari, Ali Reza Abdollahi, Shahram Ejtemaei Mehr, Ahmad R Dehpour
OBJECTIVES: Alpha7 nicotinic acetylcholine receptor (α7-nAChR), an emerging pharmacological target for a variety of medical conditions, is expressed in the most mammalian tissues with different effects. So, this study was designed to investigate the expression, localization and effect of α7-nAChR in rat corpus cavernosum (CC). METHODS & KEY FINDINGS: Reverse transcription polymerase chain reaction (RT-PCR) revealed that α7-nAChR was expressed in rat CC and double immunofluorescence studies demonstrated the presence of α7-nAChR in corporal neurons...
August 24, 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/28791056/accuracy-of-different-topographic-instruments-in-calculating-corneal-power-after-myopic-photorefractive-keratectomy
#16
Alireza Baradaran-Rafii, Sahba Fekri, Mohammad Rezaie, Shahram Salehi-Rad, Ali Moradi, Tahmineh Motevasseli, Masumeh Kalantarion
PURPOSE: To compare the corneal power measurements obtained using different topographic instruments after myopic photorefractive keratectomy (PRK). METHODS: Patients with myopia who were candidates for corneal refractive surgery were sequentially included. Pre-PRK and six months post-PRK corneal powers were measured using Javal manual keratometer, Orbscan II, Galilei, Tomey TMS4, and EyeSys 2000 topographers. Measured values were compared with those obtained using the clinical history method (CHM)...
July 2017: Journal of Ophthalmic & Vision Research
https://www.readbyqxmd.com/read/28761519/comparison-of-postoperative-clinical-outcome-after-repairing-surgery-for-lumbar-spinal-stenosis-between-diabetic-and-nondiabetic-patients
#17
Tahmineh Afsharian, Shirzad Azhari, Babak Mostafazadeh
BACKGROUND: Poorer postoperative outcome is suggested after repairing surgery in diabetic patients with lumbar spinal stenosis in comparison with nondiabetic patients. The present study aimed to compare the clinical outcome of surgery for lumbar spinal stenosis and diabetic and nondiabetic patients to highlight the effect of diabetes on prognosis of this surgical procedure. METHODS: This prospective cohort study is conducted on 25 diabetic patients with lumbar spinal stenosis who were candidate for surgical treatment...
July 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/28720844/highly-efficient-non-enzymatic-glucose-sensor-based-on-cuo-modified-vertically-grown-zno-nanorods-on-electrode
#18
Rafiq Ahmad, Nirmalya Tripathy, Min-Sang Ahn, Kiesar Sideeq Bhat, Tahmineh Mahmoudi, Yousheng Wang, Jin-Young Yoo, Dae-Wook Kwon, Hwa-Young Yang, Yoon-Bong Hahn
There is a major challenge to attach nanostructures on to the electrode surface while retaining their engineered morphology, high surface area, physiochemical features for promising sensing applications. In this study, we have grown vertically-aligned ZnO nanorods (NRs) on fluorine doped tin oxide (FTO) electrodes and decorated with CuO to achieve high-performance non-enzymatic glucose sensor. This unique CuO-ZnO NRs hybrid provides large surface area and an easy substrate penetrable structure facilitating enhanced electrochemical features towards glucose oxidation...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28512548/relationship-between-pulp-tooth-volume-ratios-and-chronological-age-in-different-anterior-teeth-on-cbct
#19
Nima Biuki, Tahmineh Razi, Masoumeh Faramarzi
BACKGROUND: The CBCT imaging technique exhibits proper accuracy to determine the internal anatomy of teeth. Therefore, this technique can use to estimate age by measuring the amount of decrease in the volume of the pulpal cavity of teeth. The aim of the present study was to evaluate the correlation between chronological age and pulp-to-tooth volume ratios in anterior teeth with the use of the CBCT technique and to determine a regression model to estimate human age. MATERIAL AND METHODS: In this present descriptive-analytical study, 122 subjects (46 males and 76 females), with an age range of 13-70 years, were evaluated...
May 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28494166/ocular-safety-of-intravitreal-connective-tissue-growth-factor-neutralizing-antibody
#20
Tahmineh Motevasseli, Narsis Daftarian, Mozhgan Rezaei Kanavi, Hamid Ahmadieh, Abouzar Bagheri, Seyed Bagher Hosseini, Shabnam Ansari, Zahra-Soheila Soheili
PURPOSE: To detect the safety of intravitreal injection of anti-connective tissue growth factor (CTGF) (IVAC) in rat eyes in order to apply this neutralizing antibody for experimental animal studies. METHODS: Forty-five Lister Hooded male pigmented rats were divided into five groups that received IVAC (2 μl) corresponding to the doses of 10 (B), 20 (C), 50 (D), and 100 μg/ml (E), equal to 1.25, 2.5, 6.25, and 12.5 µg/ml of antibody concentration in rat vitreous, respectively...
August 2017: Current Eye Research
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